RJ
Richard Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Johnson-County, Iowa
Our Model Tree links this Richard Jones across the 1920, 1930 and 1940 US Censuses in Johnson-County, Iowa (XGBoost, ~Confirmed), with identified parents Elizabeth & Richard — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Johnson-County, Iowa |
| Surname | Jones |
| Given Name | Richard K. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Iowa City |
| 1935 Residence (County) | Johnson |
| Additional Details | |
| Occupation | Clerk |
| Industry | Surgical Dept. |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 300 |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Iowa City |
| Est. Birth Year | ~1919 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Richard Jones | Head | — | 44 | ~1896 |
| Richard Jones | Son | — | 21 | ~1919 |
| Robert Jones | Son | — | 16 | ~1924 |
| Elizabeth Jones | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Johnson, Iowa
Son, age 1
Johnson, Iowa · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Richard K |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Johnson, Iowa
Son, age 11
Johnson, Iowa · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Richard R |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | carrier |
| Industry | magazine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | no |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Johnson-County, Iowa
Son, age 21
Johnson-County, Iowa · implied b. ~1919 — 4 household members
| Surname | Jones |
| Given Name | Richard K. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Iowa City |
| 1935 Residence (County) | Johnson |
| Occupation | Clerk |
| Industry | Surgical Dept. |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 300 |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Richard Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Elizabeth Jones (~0.92 confidence) and father Richard Jones (~0.92 confidence) and father Richard Jones (~0.92 confidence) and father Richard Jones (~0.92 confidence) and mother Elizabeth Jones (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Elizabeth Jones
b. ~1895
Source mother
● Household
· direct · ~0.92
Father
Richard Jones
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Richard Jones
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Richard Jones
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Jones
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Jones
Son · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Robert Jones
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Johnson-County, Iowa
Open full size
1940 US Federal Census — Johnson-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01171-00301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stuart A. Smith | 1 | Son | — | New York |
| 2 | Pearl Dane | 38 | Head | Clerk | Iowa |
| 3 | Pearl D. Dane | 38 | Wife | — | Iowa |
| 4 | David Dane | 6 | Son | — | Iowa |
| 5 | Donna Sue Dane | 4 | Dau | — | Iowa |
| 6 | Antonette Polacek | 45 | Head | — | Iowa |
| 7 | Eleanor M.A. Polacek | 41 | Dau | Quota Clerk | Iowa |
| 8 | Richard Jones | 44 | Head | County Recorder | Iowa |
| 9 | Elizabeth O. Jones | 45 | Wife | — | Iowa |
| 10 | Richard K. Jones THIS PERSON | 21 | Son | Clerk | Iowa |
| 11 | Robert H. Jones | 16 | Son | — | Iowa |
| 12 | Louise O. Anderson | 56 | Head | Clerk | Iowa |
| 13 | Deloma Anderson | 50 | Sister | Secretary | Iowa |
| 14 | Vera Anderson | 49 | Sister | Asst. Lib. Conf. | Iowa |
| 15 | Ella Dorr | 42 | Head | Cook | Texas |
| 16 | Jeannette Whipple | 53 | Head | House Mother | Iowa |
| 17 | Theresa Donovan | 62 | Head | Cook | Iowa |
| 18 | Mary B. De Luce | 51 | Head | House Mother | New York |
| 19 | Ada Gates | 60 | Head | Cook | Iowa |
| 20 | May Lantry | 54 | Head | Maid | Iowa |
| 21 | Sarah O. Edwards | 58 | Head | Librarian | Indiana |
| 22 | Elva P. Mcguire | 63 | Head | Janitor | Iowa |
| 23 | Nellie E. Mcguire | 60 | Wife | Cook | Iowa |
| 24 | Ella Nelson | 63 | Head | Cook | Norway |
| 25 | Harriet Evans | 45 | Head | Housemother | Iowa |
| 26 | Wilfred B. Keil | 34 | Head | Dentist | Iowa |
| 27 | Margaret Q. Keil | 32 | Wife | — | S. Dakota |
| 28 | John A. Mcgeoch | 42 | Head | Professor | New York |
| 29 | Frances P. Mcgeoch | 42 | Wife | — | W. Virginia |
| 30 | Joan Hatch | 15 | Dau | — | W. Virginia |
| 31 | John Hatch | 12 | Son | — | Pennsylvania |
| 32 | Joseph E. Ross | 68 | Head | — | Iowa |
| 33 | Adell Ross | 65 | Wife | — | Iowa |
| 34 | Howard Rowley | 34 | Head | Professor | New York |
| 35 | Elizabeth Q. Rowley | 27 | Wife | — | Michigan |
| 36 | Jean T. O. Lowenthal | 58 | Head | Housemother | Germany |
| 37 | Elizabeth O. Shaver | 60 | Head | Cook | Illinois |
| 38 | Bernice W. Josie | 42 | Head | Janitor | Minnesota |
| 39 | Bernice Josie | 36 | Wife | Cook | Iowa |
Pedigree Summary
Richard + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)